61245546612 has 48 divisors (see below), whose sum is σ = 145337955840. Its totient is φ = 20069055072.

The previous prime is 61245546581. The next prime is 61245546623. The reversal of 61245546612 is 21664554216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313339 + ... + 469757.

It is an arithmetic number, because the mean of its divisors is an integer number (3027874080).

Almost surely, 2^61245546612 is an apocalyptic number.

It is an amenable number.

61245546612 is an abundant number, since it is smaller than the sum of its proper divisors (84092409228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61245546612 is a wasteful number, since it uses less digits than its factorization.

61245546612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156980 (or 156978 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The spelling of 61245546612 in words is "sixty-one billion, two hundred forty-five million, five hundred forty-six thousand, six hundred twelve".